Which of the following statements about the Pygmy hog is/are correct?

1. The Pygmy hog is the smallest and rarest species of wild pig in the world.

2. It serves as an indicator species, reflecting the health of its primary habitat, tall and wet grasslands.

3. The IUCN has listed the Pygmy hog as Vulnerable, and it is protected under Schedule II of the Wildlife Protection Act, 1972.

Select the correct answer using the code given below: